X-Git-Url: http://git.cascardo.eti.br/?a=blobdiff_plain;f=datapath%2Fvport.h;h=33c3935e9fd7a2dc45fd279cc479dbd240838fe9;hb=968eec593cc61690c9e0ed97450c4889258381af;hp=2cf2b183bca936081eebfe46c010d13b261276e2;hpb=c31964ce3a27bcbc7457346c8d14aa0e83ab72c8;p=cascardo%2Fovs.git diff --git a/datapath/vport.h b/datapath/vport.h index 2cf2b183b..33c3935e9 100644 --- a/datapath/vport.h +++ b/datapath/vport.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2007-2012 Nicira, Inc. + * Copyright (c) 2007-2015 Nicira, Inc. * * This program is free software; you can redistribute it and/or * modify it under the terms of version 2 of the GNU General Public @@ -23,18 +23,18 @@ #include #include #include +#include #include #include #include +#include + +#include "datapath.h" struct vport; struct vport_parms; /* The following definitions are for users of the vport subsytem: */ -struct vport_net { - struct vport __rcu *gre_vport; - struct vport __rcu *gre64_vport; -}; int ovs_vport_init(void); void ovs_vport_exit(void); @@ -42,56 +42,66 @@ void ovs_vport_exit(void); struct vport *ovs_vport_add(const struct vport_parms *); void ovs_vport_del(struct vport *); -struct vport *ovs_vport_locate(struct net *net, const char *name); +struct vport *ovs_vport_locate(const struct net *net, const char *name); -void ovs_vport_set_stats(struct vport *, struct ovs_vport_stats *); void ovs_vport_get_stats(struct vport *, struct ovs_vport_stats *); int ovs_vport_set_options(struct vport *, struct nlattr *options); int ovs_vport_get_options(const struct vport *, struct sk_buff *); -int ovs_vport_send(struct vport *, struct sk_buff *); +int ovs_vport_set_upcall_portids(struct vport *, const struct nlattr *pids); +int ovs_vport_get_upcall_portids(const struct vport *, struct sk_buff *); +u32 ovs_vport_find_upcall_portid(const struct vport *, struct sk_buff *); + +int ovs_tunnel_get_egress_info(struct dp_upcall_info *upcall, + struct net *net, + struct sk_buff *, + u8 ipproto, + __be16 tp_src, + __be16 tp_dst); -/* The following definitions are for implementers of vport devices: */ +int ovs_vport_get_egress_tun_info(struct vport *vport, struct sk_buff *skb, + struct dp_upcall_info *upcall); -struct vport_err_stats { - u64 rx_dropped; - u64 rx_errors; - u64 tx_dropped; - u64 tx_errors; +/** + * struct vport_portids - array of netlink portids of a vport. + * must be protected by rcu. + * @rn_ids: The reciprocal value of @n_ids. + * @rcu: RCU callback head for deferred destruction. + * @n_ids: Size of @ids array. + * @ids: Array storing the Netlink socket pids to be used for packets received + * on this port that miss the flow table. + */ +struct vport_portids { + struct reciprocal_value rn_ids; + struct rcu_head rcu; + u32 n_ids; + u32 ids[]; }; /** * struct vport - one port within a datapath * @rcu: RCU callback head for deferred destruction. * @dp: Datapath to which this port belongs. - * @upcall_portid: The Netlink port to use for packets received on this port that - * miss the flow table. + * @upcall_portids: RCU protected 'struct vport_portids'. * @port_no: Index into @dp's @ports array. * @hash_node: Element in @dev_table hash table in vport.c. * @dp_hash_node: Element in @datapath->ports hash table in datapath.c. * @ops: Class structure. - * @percpu_stats: Points to per-CPU statistics used and maintained by vport - * @stats_lock: Protects @err_stats and @offset_stats. - * @err_stats: Points to error statistics used and maintained by vport - * @offset_stats: Added to actual statistics as a sop to compatibility with - * XAPI for Citrix XenServer. Deprecated. + * @detach_list: list used for detaching vport in net-exit call. */ struct vport { - struct rcu_head rcu; + struct net_device *dev; struct datapath *dp; - u32 upcall_portid; + struct vport_portids __rcu *upcall_portids; u16 port_no; struct hlist_node hash_node; struct hlist_node dp_hash_node; const struct vport_ops *ops; - struct pcpu_tstats __percpu *percpu_stats; - - spinlock_t stats_lock; - struct vport_err_stats err_stats; - struct ovs_vport_stats offset_stats; + struct list_head detach_list; + struct rcu_head rcu; }; /** @@ -112,7 +122,7 @@ struct vport_parms { /* For ovs_vport_alloc(). */ struct datapath *dp; u16 port_no; - u32 upcall_portid; + struct nlattr *upcall_portids; }; /** @@ -128,9 +138,10 @@ struct vport_parms { * @get_options: Appends vport-specific attributes for the configuration of an * existing vport to a &struct sk_buff. May be %NULL for a vport that does not * have any configuration. - * @get_name: Get the device's name. - * @send: Send a packet on the device. Returns the length of the packet sent, + * @send: Send a packet on the device. * zero for dropped packets or negative for error. + * @get_egress_tun_info: Get the egress tunnel 5-tuple and other info for + * a packet. */ struct vport_ops { enum ovs_vport_type type; @@ -142,17 +153,12 @@ struct vport_ops { int (*set_options)(struct vport *, struct nlattr *); int (*get_options)(const struct vport *, struct sk_buff *); - /* Called with rcu_read_lock or ovs_mutex. */ - const char *(*get_name)(const struct vport *); - - int (*send)(struct vport *, struct sk_buff *); -}; + int (*get_egress_tun_info)(struct vport *, struct sk_buff *, + struct dp_upcall_info *upcall); + netdev_tx_t (*send)(struct sk_buff *skb); -enum vport_err_type { - VPORT_E_RX_DROPPED, - VPORT_E_RX_ERROR, - VPORT_E_TX_DROPPED, - VPORT_E_TX_ERROR, + struct module *owner; + struct list_head list; }; struct vport *ovs_vport_alloc(int priv_size, const struct vport_ops *, @@ -173,7 +179,7 @@ void ovs_vport_deferred_free(struct vport *vport); */ static inline void *vport_priv(const struct vport *vport) { - return (u8 *)vport + ALIGN(sizeof(struct vport), VPORT_ALIGN); + return (u8 *)(uintptr_t)vport + ALIGN(sizeof(struct vport), VPORT_ALIGN); } /** @@ -186,22 +192,13 @@ static inline void *vport_priv(const struct vport *vport) * the result of a hash table lookup. @priv must point to the start of the * private data area. */ -static inline struct vport *vport_from_priv(const void *priv) +static inline struct vport *vport_from_priv(void *priv) { - return (struct vport *)(priv - ALIGN(sizeof(struct vport), VPORT_ALIGN)); + return (struct vport *)((u8 *)priv - ALIGN(sizeof(struct vport), VPORT_ALIGN)); } -void ovs_vport_receive(struct vport *, struct sk_buff *, - struct ovs_key_ipv4_tunnel *); - -/* List of statically compiled vport implementations. Don't forget to also - * add yours to the list at the top of vport.c. */ -extern const struct vport_ops ovs_netdev_vport_ops; -extern const struct vport_ops ovs_internal_vport_ops; -extern const struct vport_ops ovs_gre_vport_ops; -extern const struct vport_ops ovs_gre64_vport_ops; -extern const struct vport_ops ovs_vxlan_vport_ops; -extern const struct vport_ops ovs_lisp_vport_ops; +int ovs_vport_receive(struct vport *, struct sk_buff *, + const struct ip_tunnel_info *); static inline void ovs_skb_postpush_rcsum(struct sk_buff *skb, const void *start, unsigned int len) @@ -209,4 +206,39 @@ static inline void ovs_skb_postpush_rcsum(struct sk_buff *skb, if (skb->ip_summed == CHECKSUM_COMPLETE) skb->csum = csum_add(skb->csum, csum_partial(start, len, 0)); } + +static inline const char *ovs_vport_name(struct vport *vport) +{ + return vport->dev->name; +} + +int __ovs_vport_ops_register(struct vport_ops *ops); +#define ovs_vport_ops_register(ops) \ +({ \ + (ops)->owner = THIS_MODULE; \ + __ovs_vport_ops_register(ops); \ +}) + +void ovs_vport_ops_unregister(struct vport_ops *ops); + +static inline struct rtable *ovs_tunnel_route_lookup(struct net *net, + const struct ip_tunnel_key *key, + u32 mark, + struct flowi4 *fl, + u8 protocol) +{ + struct rtable *rt; + + memset(fl, 0, sizeof(*fl)); + fl->daddr = key->u.ipv4.dst; + fl->saddr = key->u.ipv4.src; + fl->flowi4_tos = RT_TOS(key->tos); + fl->flowi4_mark = mark; + fl->flowi4_proto = protocol; + + rt = ip_route_output_key(net, fl); + return rt; +} + +void ovs_vport_send(struct vport *vport, struct sk_buff *skb); #endif /* vport.h */